Focus on Cellulose ethers

Ndeipi basa re hydroxyethyl cellulose (HEC) mumachira ematombo echisikigo?

Hydroxyethylcellulose (HEC) i polymer inonyungudika nemvura inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana anosanganisira kuvaka, chikafu, mishonga uye zvigadzirwa zvekuchengeta munhu.Iyo yakasikwa, biodegradable zvinhu zvakatorwa kubva ku cellulose, kabhohaidhiretsi inowanikwa muchirimwa sero madziro.Mumachira ematombo echisikigo, HEC inoita basa rakakosha mukuvandudza mashandiro uye aesthetic zvimiro zvejasi.

Zvipfeko zvematombo echisikigo zvinoshandiswa kuchengetedza uye kuwedzera kutaridzika kwematombo echisikigo akadai semarble, granite uye limestone.Aya mabhanhire anopa danda rekudzivirira kubva kune mamiriro ekunze, ngura, kusvibisa uye kukwenya.Vanogonawo kuvandudza ruvara, kupenya uye kuumbwa kwebwe, nokudaro vachiwedzera kunaka kwayo.

Nekudaro, machira ematombo echisikigo anotarisana nematambudziko akati wandei nekushandisa, kunamatira uye kuita.Iko kupfekedza kunofanira kunamatira zvakasimba kune ibwe pamusoro pasina kukuvadza dombo kana kukanganisa maitiro ayo echisikigo.Iwo anofanirwawo kupesana nemwaranzi yeUV uye zvimwe zvinonetsa kwezvakatipoteredza izvo zvinogona kukonzeresa kuparara kana kushanduka nekufamba kwenguva.Uyezve, pende inofanira kunge iri nyore kushandisa, yakaoma nokukurumidza, uye isingatani kutsemuka kana kusvuura.

Kugadzirisa matambudziko aya, machira ematombo echisikigo anowanzo batanidza zvakasiyana-siyana zvekuwedzera uye mafirita ekuvandudza zvivakwa zvavo.HEC chimwe chekuwedzera chakadaro chinowanzoshandiswa mumachira aya nekuda kwekusiyana kwayo.

Basa rekutanga reHEC mumachira ematombo echisikigo kuita seanokora, binder uye rheology modifier.HEC mamorekuru ane marefu mitsara zvimiro zvinotora mvura uye kugadzira gel-sechinhu.Iyi gel-yakaita sechinhu chinokora mafomula ependi, ichiita kuti iwedzere kutaridzika uye nyore kuisa.Mukuwedzera, iyo gel-yakafanana chinhu inogona kupa yakagadzikana uye yunifomu kupararira kwezvikamu zvekuputira, kudzivirira kugadzirisa kana kuparadzana.

HEC inoshanda sebhainda kuti ivandudze kusungirirwa kwekuputira padombo repamusoro.HEC mamorekuru anogona kusungirirwa nematombo ematombo uye mapeji ekuputira kuti aumbe yakasimba uye inogara kwenguva refu zvisungo.Ichi chisungo chinopikisa kuveura, spalling kana delamination pasi pekunetseka, kuve nechokwadi chekunamatira kwenguva refu uye kuchengetedzwa kwedombo pamusoro.

HEC inoshandawo se rheology modifier, inodzora kuyerera uye viscosity yejasi.Nekugadzirisa huwandu uye rudzi rweHEC, iyo viscosity uye thixotropy yejasi inogona kugadzirwa kuti ienderane neiyo nzira yekushandisa uye inodiwa kuita.Thixotropy inzvimbo yepende inoyerera nyore nyore kana iine kushushikana kwekuveura, sepanguva yekusanganiswa kana kushandiswa, asi inowedzera nokukurumidza kana shear stress ichibviswa.Ichi chivakwa chinowedzera kupararira uye kufukidzwa kwejasi uku uchidzikisa kudonha kana kudonha.

Pamusoro pebasa rayo rekushanda, HEC inogona kuvandudza hunhu hwemasikirwo ematombo ematombo.HEC inogona kukwidziridza ruvara, kupenya uye kugadzirwa kwejasi nekugadzira firimu rakapfava uye rakafanana padombo.Iyo firimu inopawo dhigirii remvura uye kusamira kwemavara, kudzivirira mvura kana zvimwe zvinwiwa kubva pakubuda kana kupinda mukati medombo.

HEC zvakare yakasikwa uye ine hushamwari zvinhu izvo zvakachengeteka kushandisa nekurasa.Iyo ine biodegradable uye haiburitse chero inokuvadza ne-zvigadzirwa kana emissions panguva yekugadzira kana kushandiswa.

Muchidimbu, hydroxyethyl cellulose (HEC) inoita basa rakakosha nekuvandudza mashandiro uye aesthetics yematombo echisikigo machira.HEC inoshanda seyakakora, binder uye rheology modifier, inosimudzira viscosity, kunamatira uye kuyerera kwejasi.HEC inogonawo kuvandudza ruvara, kupenya uye kugadzirwa kwejasi uye kupa dhigirii remvura uye kushora kuramba.Pamusoro pezvo, HEC ndeye yakasikwa, biodegradable zvinhu zvakachengeteka uye zvine hushamwari.


Nguva yekutumira: Sep-12-2023
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